Description:
25W-40 FC-W 4-Stroke Stern Drive Marine Oil – 5 Qt / 4.73L (18-9400-4)Premium protection for high-load sterndrive and inboard engines.This 25W-40 FC-W 4-Stroke Stern Drive Oil is engineered specifically for sterndrive and inboard engines that operate under heavy load, continuous running stress, and harsh marine environments. Formulated with premium base oils and a sophisticated additive package, it delivers excellent lubrication, enhanced detergency, and robust corrosion protection to keep engines running cleaner, cooler, and more efficiently.Designed to outperform standard automotive 4-cycle oils, this marine-grade formulation reduces internal wear, prevents piston ring sticking, and maintains superior film strength even at low temperatures and during extended high-RPM operation. Certified to NMMA FC-W standards and meeting API SJ, CF-4, and CH-4 performance requirements, it provides reliable engine protection in both freshwater and saltwater conditions. Recommended for MerCruiser and OMC applications.Key Features- Formulated for excellent lubrication and corrosion protection- Designed to handle high load and running stress in sterndrive and inboard engines- Outperforms standard automotive 4-cycle oils in marine environments- Superior detergency and oxidation resistance- Reduces wear and protects critical internal components- Helps maintain cleaner pistons and prevents ring sticking- Excellent low-temperature performance- Meets or exceeds API SJ, CF-4, CH-4 standards- NMMA FC-W Certified- Recommended for MerCruiser and OMC engines- Bottle Size: 5 quarts (4.73 L)- Shipping box quantity = 4OEM Interchange- Mallory: 9-82382- Mercury Marine: 8M0078640, 92-857389A1
